The use of the HF radar to measure and map surface currents has proliferated along the coastlines of many countries for purposes of Search and Rescue, Oil Spill Management, Oceanographic and Fishery Science studies. In the US Navy, these surface current maps are being evaluated for operational use in real-time data assimilating coastal circulation models, and direct monitoring tools in environmentally sensitive operating areas. The SeaSonde HF radar, a DF system, was considered in this study....
Topics: Ocean currents, Doppler radar, Computer programs, Oceanography
While the D-Flow software has many applications intended for walking, running, and balance, it does not include any premade driving simulation scenarios. The driving simulator NHRC required would have a variety of easily modified road courses, the ability to collect data for research purposes, simulate realistic automobile movements using the motion base platform, and the ability to integrate an eye-tracking system. While the D-Flow software is capable of controlling the system and creating...
Topics: DTIC Archive, NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA, *COMPUTER PROGRAMS, *REHABILITATION,...
The explicit incorporation of measurement and analysis as a distinct process area in the Capability Maturity Model Integration (CMMI(registered)) provides management with the visibility and focus that organizations need to guide the use of measurement in their process improvement efforts, which was missing in previous models. This article reviews the content and rationale behind the new process area and describes how the ideas introduced there are further elaborated and evolved throughout...
Topics: DTIC Archive, OFFICE OF THE UNDER SECRETARY OF DEFENSE (ACQUISITION TECHNOLOGY AND LOGISTICS)...
This document is the Final Technical Report for the PETTT Special Project BY09-012SP, Enhanced Computational Toolbox Including Multiquantum Vibration-Translation (VT) & Vibration-Electronic (VE) Exchanges, Dissociation and Radiation Effects. This project involved producing a computational toolbox for implementation of master equation based on detailed state-to-state (STS) kinetics. A toolbox has been developed to account for Vibration-translation (VT), Vibration-Electronic (VE), radiative...
Topics: DTIC Archive, HIGH PERFORMANCE TECHNOLOGIES INC RESTON VA, *COMPUTERIZED SIMULATION, *HYPERSONIC...
The project will validate a technologically advanced, yet portable system, which will be beneficial to deployed warfighters and clinical military personnel. The device can be used to provide a quick assessment of physiological processes involved in postural control, which will assist with clinical screening of traumatic brain injury (TBI). Knowledge of acute symptoms associated with TBI can help clinicians make important decisions regarding treatment and/or return to duty. Early identification...
Topics: DTIC Archive, TEMPLE UNIV PHILADELPHIA PA, *CLINICAL MEDICINE, *MEDICAL SCREENING, *TRAUMATIC BRAIN...
This paper examines using Agile techniques in the software sustainment arena--specifically Air Force programs. The Software Engineering Institute has researched the viability of Agile software development methods within Department of Defense programs and barriers to the adoption of those methods for several years. How software sustainers leverage Agile methods and avoid barriers to using Agile methods are addressed in this paper. In addition, the potential use of a construct called DevOps is...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *AGILE SOFTWARE...
The primary purpose and legal authority for the U.S. Army Corps of Engineers, Omaha District, Cultural Resource Program is found in the National Historic Preservation Act (16 U.S.C. 470f et seq) (NHPA), particularly section 106 (16 U.S.C. 470f), section 110 (16 U.S.C. 470h-2), and section 101 (16 U.S.C. 470a) of that Act. Other important cultural resource laws are the following: Public Law 74- 292, Historic Sites Act of 1935, as amended; Public Law 91-190, National Environmental Policy Act of...
Topics: DTIC Archive, ARMY ENGINEER DISTRICT OMAHA NE, *CULTURAL RESOURCES, *RESOURCE MANAGEMENT, ARMY...
The Computer Assisted Rehabilitation Environment (CAREN; Motek Medical BV, Amsterdam, The Netherlands) located at the Naval Health Research Center (NHRC) is an immersive virtual environment and motion analysis laboratory designed for interactive rehabilitation and research of human performance in a controlled and repeatable environment. While NHRC s CAREN was originally equipped with audio, video, and motion capabilities, the system did not provide any type of olfactory immersion capability. As...
Topics: DTIC Archive, NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA, *OLFACTORY NERVE, *REHABILITATION, *SMELL,...
Overview: This guide is designed to allow you to quickly access the information you need to use the Model Analyst s Toolkit. It is also designed to allow you to build your knowledge of the Model Analyst s Toolkit. Use the Table of Contents and Index to quickly find the answer to a specific question, or read the entire book for a complete understanding of all the functionality offered in MAT. About the Model Analyst s Toolkit The Model Analyst's Toolkit (MAT) is software that supports...
Topics: DTIC Archive, CHARLES RIVER ANALYTICS INC CAMBRIDGE MA, *COMPUTER PROGRAMS, *QUANTITATIVE ANALYSIS,...
The purpose of this proposal is to develop smoothness-increasing accuracy-conserving filters that respect the mathematical properties of the data while providing levels of smoothness so that commonly used visualization tools can be used appropriately, accurately, and efficiently. The goals of this effort are to define, investigate, and address the technical obstacles inherent in visualization of data derived from high-order discontinuous Galerkin methods and to provide robust and easy to use...
Topics: DTIC Archive, UTAH UNIV SALT LAKE CITY, *GALERKIN METHOD, ALGORITHMS, BARRIERS, COMMUNITIES,...
The effort included three science goals (SG) along with the development of the corresponding software. Specifically, the science goals were as follows: SG1 Characterizing the surface magnetic structure of active regions (ARs); SG2 Characterizing the coronal topology of ARs, and SG3 Characterizing the time dependent behavior of AR magnetic and coronal properties. Most of the targeted scientific goals were achieved, and software has been developed to automatically track ARs and to study the...
Topics: DTIC Archive, TRINITY COLL DUBLIN (IRELAND), *SUNSPOTS, COMPUTER PROGRAMS, CORONAS, DETECTION,...
The long-term goal is to develop exact'' numerical methods that can be used to study the propagation of acoustic energy in shallow water. Exact in this contexts means that the methods place no restrictions on the underlying physics of the environment.
Topics: DTIC Archive, WASHINGTON STATE UNIV PULLMAN SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE,...
A cornerstone of DoD policy for future software and systems policy is the migration of systems to net-centric operations. The net-centric vision requires the leveraging of a highly flexible set of capabilities that can be composed quickly and flexibly into applications that take advantage of the interoperable aspects of the web and provide effective mission value. Among current technologies, SOA has the greatest potential for implementing this vision. However, there is a great deal of con-...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *MANAGEMENT PLANNING...
This paper describes the application of subsystem summary algorithms for self-contained power system configuration trade-off studies, and presents the results of a recently completed study. The development of summary weight algorithms for rocket turbines and rotating electrical generators is described. These new algorithms are combined with previously developed power conditioning subsystem algorithms in a computer program to automatically study various system configurations. A flow chart of the...
Topics: DTIC Archive, AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OH, *ALGORITHMS, *ELECTRIC...
Deployed multithreaded applications contain many races because these applications are difficult to write, test, and debug. Worse, the number of races in deployed applications may drastically increase due to the rise of multicore hardware and the immaturity of current race detectors. LOOM is a live-workaround system designed to quickly and safely bypass application races at runtime. LOOM provides a flexible and safe language for developers to write execution filters that explicitly synchronize...
Topics: DTIC Archive, COLUMBIA UNIV NEW YORK DEPT OF COMPUTER SCIENCE, *COMPUTER PROGRAMS, ALGORITHMS,...
This report summarizes a theoretical investigation of the current problems of nitramine (composite) propellant combustion. This study has a detailed examination of the condensed-phase processes in the combustion of nitramine propellants. As a consequence of a recently developed model for the combustion of ammonium perchlorate (AP)/composite propellants, it is hypothesized that the condensed-phase degradation of the nitramine oxidizer particles to a vaporizable state is the overall rate-limiting...
Topics: DTIC Archive, Kumar,R. N., Strand,L. D., JET PROPULSION LAB PASADENA CALIF, (*NITRAMINES,...
This report describes the theory of operation and use of the Create Tape System, Version 2. This CTS2 system allows creation and editing of FORTRAN, ALGOL, and Assembly Language programs for use by the HP 9830 Calculator when acting as a paper tape reader for the HP 2100 Mini-Computer.
Topics: DTIC Archive, Murley, J D, AIR FORCE ARMAMENT LAB EGLIN AFB FL, *COMPUTER PROGRAMS, ASSEMBLY...
Our long-term goal is to provide the Navy an updated process model applicable to Fleet needs for the prediction of mine scour and burial in nearshore waters, surf, very shallow water (VSW) and into the shallow water (SW) zone.
Topics: DTIC Archive, SCRIPPS INST OF OCEANOGRAPHY LA JOLLA CA INTEGRATIVE OCEANOGRAPHY DIV, *COMPUTER...
A full-screen, scrollable spreadsheet-like editor written in the APL2 language is described for inputting, examining, and outputting data. Mixed numeric and character arrays can be read into or read out to formatted or comma delimited ASCII files. Alternatively a bulk mode input facility allows for rapid direct data entry, or data can be examined and edited cell-by-cell in the usual way. Columns, rows or blocks of data can be highlighted in a chosen color, shadowed, moved or copied. In addition...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COMPUTER PROGRAMS, *DATA DISPLAYS,...
This project resulted in software and algorithms for computing the real solution of polynomial systems contained within complex curves and surfaces. The primary product was Bertini Real, a publicly available software package for these computations. Secondary products included four articles, all in progress. These articles document the algorithms developed during the reporting period, including (1) a complete algorithm in the case of complex surfaces with no restricitons on the type of surface;...
Topics: DTIC Archive, COLORADO STATE UNIV FORT COLLINS, *ALGEBRAIC GEOMETRY, *POLYNOMIALS, ALGEBRAIC...
For effective long-term passive acoustic monitoring of today's large data sets, automated algorithms must provide the ability to detect and classify marine mammal vocalizations and ultimately, in some cases, provide data for estimating the population density of the species present. In recent years, researchers have developed a number of algorithms for detecting calls and classifying them to species or species group (such as beaked whales). Algorithms must be robust in real ocean environments...
Topics: DTIC Archive, NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI, *ACOUSTIC DETECTION, *ALGORITHMS,...
In this CNA Interactive Software document, we present the update of our Integrated Ship Database (ISDB) for the fourth quarter of calendar year 2012. In this version of the ISDB, as in the previous ones, we bring together data on naval ships from several different online government sources into a single combined database tool. The ISDB makes ship data readily accessible for analysis and reporting. By continually maintaining and updating the database, we are better able to respond promptly to...
Topics: DTIC Archive, CENTER FOR NAVAL ANALYSES ALEXANDRIA VA, *DATA BASES, COMPUTER PROGRAMS, INTEGRATED...
When testing weapons that fire subsonic ammunition, analyzing the accuracy of gunshots fired at paper targets can be very tedious. The U.S. Army Research Laboratory (ARL), Human Research and Engineering Directorate (HRED), Dismounted Warrior Branch (DWB) is working on making the analysis of subsonic shot accuracy faster, less tedious, and more efficient. My Science and Engineering Apprenticeship Program (SEAP) project was to aid in the design and programming of an application that digitally...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING...
A Coverage Index Generator Java application was developed in the summer of 2011, based on the work of Lapinski and Isenor (Estimating Reception Coverage Characteristics of AIS, Lapinski and Isenor, Journal of Navigation, October 2011). This application gathers Automatic Identification System (AIS) messages and produces a coverage map, graphically representing the quality and fidelity of signals received by coastal sensors. The application gathers its inputs either from static data files or a...
Topics: DTIC Archive, OODA TECHNOLOGIES INC MONTREAL (CANADA), *DETECTION, AREA COVERAGE, COMPUTER...
Variants of a ring resonator for measurement of dielectric constants of soil were modeled using FEKO computational electromagnetic software with the aim of improving performance. The variations explored included use of an alternative dielectric laminate, with lower dielectric constant and dissipation factor, various thicknesses of the laminates, and opening the ring on one side so as to change the ring strip to a C shaped strip. Comparisons of changes in the resonances appearing in the...
Topics: DTIC Archive, ARMY RESEARCH LAB ADELPHI MD, *DIELECTRICS, *RESONATORS, ANTENNAS, COMPUTATIONS,...
In this project we aim to construct a high fidelity boundary condition module for Maxwell's equations that can be interfaced with major time-domain electromagnetics solver systems. There is ample need in the EM modeling community for reliable and stable far field boundary conditions of high accuracy. Most existing methods are limited in one or more of these requirements, and recent developments in the CRBC procedure (as originally presented by Hagstrom and Warburton in 2009), have made the...
Topics: DTIC Archive, HYPERCOMP INC WESTLAKE VILLAGE CA, *COMPUTER PROGRAMS, *ELECTROMAGNETIC RADIATION,...
In urban areas, GNSS localization quality is often degraded due to signal blockage and multi-path reflections. When several GNSS signals are blocked by buildings, the remaining unblocked GNSS satellites are typically in a poor geometry for localization (nearly collinear along the street direction). Multi-path reflections result in pseudo range measurements that can be significantly longer than the line of sight path (true range) resulting in biased geolocation estimates. If a 3D map of the...
Topics: DTIC Archive, CALIFORNIA UNIV SANTA BARBARA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING, *BAYES...
Toxic airborne contaminants, when inhaled, can cause adverse health effects. The U.S. EPA tabulates three Acute Exposure Guideline Levels (AEGLs) for predicting the onset of these adverse effects from specific length exposures to specific concentrations of toxic chemicals for a general population. Inhalation exposures in the real world, however, vary strongly in space and time and thus do not correspond to the specific durations and exposure levels tabulated by the EPA-a complication that EPA...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC LAB FOR COMPUTATIONAL PHYSICS AND FLUID DYNAMICS,...
Maritime Domain Awareness (MDA) requires the ability to accurately identify, track, and understand the rationale of the behavior of vessels given the surrounding contextual environment. Reasoning about such behaviors can ultimately lead to a better understanding of whether the behaviors are normal or anomalous. In order to adequately improve the quality and overall confidence of the output of the reasoning process that leads to the conclusions regarding the nature of vessel behaviors, a system...
Topics: DTIC Archive, NAVAL RESEARCH LAB WASHINGTON DC, *ALGORITHMS, *COMPUTER PROGRAMS, *DECISION SUPPORT...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *SOFTWARE ENGINEERING,...
In an era of sequestration and austerity, the federal government is seeking software reuse strategies that will allow them to move away from stove-piped development toward open, reusable architectures. The government is also motivated to explore reusable architectures for purposes beyond fiscal constraints: to leverage existing technology, curtail wasted effort, and increase capabilities rather than reinventing them. An open architecture in a software system adopts open standards that support a...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *OPEN SYSTEM...
The US military relies on communication devices to manage and control operations. It is important to find the susceptibility of friendly-force assets to insure command and communication in an often uncontrolled electromagnetic spectrum. Likewise, it is crucial to explore the enemy s susceptibility. Simulation of electromagnetic devices is often performed in a high-frequency structural simulator (HFSS). However, the complete susceptibility analysis cannot be performed in HFSS due to...
Topics: DTIC Archive, ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM, *ELECTROMAGNETIC SUSCEPTIBILITY,...
A method for performing a stress analysis of a ship structural detail using the results from a MAESTRO analysis is described. The method used was a top-down procedure where a portion of the MAESTRO model was modelled in considerable detail using a detailed finite element grid with boundary nodes matching the MAESTRO model. The displacements obtained at the boundary nodes from the MAESTRO analysis were applied to the refined model and a finite element analysis was carried out using the fmite...
Topics: DTIC Archive, DEFENCE RESEARCH ESTABLISHMENT ATLANTIC DARTMOUTH (NOVA SCOTIA), *SHIP STRUCTURAL...
Excessive slamming is the most common cause of speed reduction for frigates and destroyers in heavy head seas. DREA's early interest in frigate/destroyer slamming was limited to the development of computer programs for ship seakeeping performance prediction. Published bottom slamming algorithms were adopted and refined to provide a slamming prediction capability for DREA software. In follow-on work described herein, both two-dimensional numerical simulations and three-dimensional model tests...
Topics: DTIC Archive, DEFENCE RESEARCH ESTABLISHMENT ATLANTIC DARTMOUTH (NOVA SCOTIA), *COMPUTERIZED...
Principled approaches to the design of user interfaces are typically unsubstantiated by practical experience, or are validated only through laboratory experiments with toy programs. This experiment applies several theoretically motivated approaches to the user interface of an existing, practical program of moderate complexity; these approaches include conceptual models, task based design, the use of metaphor, direct manipulation, and empirical evaluation. Although necessarily informal, the...
Topics: DTIC Archive, CALIFORNIA UNIV BERKELEY COMPUTER SCIENCE DIV, *INTERFACES, COMPUTER PROGRAMS,...
The purpose of this thesis is to investigate the effects of sensing capability on ground platform survivability during ground force maneuver operations. Sensor classification probability of ground platforms and speed of unmanned aerial vehicles (UAV) are the factors being studied, and the Map Aware Non-Uniform Automata (MANA) agent-based simulation software was used to create a hypothetical Ground Force Maneuver Operation Scenario for this exploration. A tailored Waterfall systems engineering...
Topics: DTIC Archive, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *MANEUVERS, *PLATFORMS, *SURVIVABILITY,...
Software transactional memory (STM) has emerged as an easy to program synchronization abstraction for multicore computer architectures. But performance of current STMframeworks are inferior and heavily influenced by infrastructure resource management (e.g., operating system scheduling, garbage collection, memory allocation). The project's first major result is ByteSTM, a virtual machine-level Java STMimplementation that is built by extending the Jikes RVM. The project modified Jikes RVM's...
Topics: DTIC Archive, VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG, *COMPUTER ARCHITECTURE, *MEMORY...
In an effort to reduce costs and time to deploy mission capable unmanned aerial vehicles (UAV), the Department of Defense (DoD) has transitioned smart devices into the battlefield as portable, handheld UAV ground control stations (GCS) without adequate cybersecurity protection. While a number of threat model approaches have been published, they are outdated and fail to evaluate a complete system. This article develops a holistic threat model that analyzes the cybersecurity vulnerabilities...
Topics: DTIC Archive, DEFENSE ACQUISITION UNIV FT BELVOIR VA, *CELLULAR COMMUNICATIONS, *GROUND STATIONS,...
The U.S. Navy has increasingly emphasized dominating the information battlespace as a key aspect of its warfighting strategy. As the Navy Strategy for Achieving Information Dominance states, whether characterized as intelligence, surveillance, reconnaissance, networks, communications, space, cyber, meteorology, oceanography, or electronic warfare, the Navy is inextricably and irreversibly dependent on information. Information provides a source of power but can also be an incapacitating weakness...
Topics: DTIC Archive, SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA, *SOFTWARE ENGINEERING,...
To observe screw dislocation motion on an infinite glide plane in atomistic simulations, shifted periodic boundary conditions (sPBC) must be utilized. We have implemented this capability in the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) software application code for use in classical molecular dynamics (MD) simulations. This report presents the justification for utilizing sPBC, followed by a description of the implementation methodology. Dislocation velocities as a...
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH...
Our objective in this project is to substantially improve the performance, size, and robustness of binary executables by using static and dynamic binary program analysis techniques to perform whole-program optimization directly on compiled programs: specializing library subroutines, removing redundant argument checking and interface layers, eliminating dead code, and improving computational efficiency. In particular, we will apply specialization and partial evaluation technology, integrating...
Topics: DTIC Archive, GRAMMATECH INC ITHACA NY, *SOFTWARE ENGINEERING, COMPUTER PROGRAMS, OPTIMIZATION
A computer program was written for the HP 9845 and the HP 9816 to calculate the directivity index directly from the beam pattern. A graphics tablet and stylus is used to digitize data points used to compute the directivity index. Graphical output is produced on a printer and plotter. This program was developed to enable the user to digitally input beam pattern data points into a computer and calculate the directivity index from this data. It eliminates the slow and monotonous task of visually...
Topics: DTIC Archive, NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT, *COMPUTER PROGRAMS, *COORDINATES,...
Our long-term goal is to gain some insight into the physics of short-term fluctuations of flow and property distributions in a low tidal energy, coastal zone dominated by wave and currents and assess our ability to model them.
Topics: DTIC Archive, TEXAS A AND M UNIV CORPUS CHRISTI TX, *CONTINENTAL SHELVES, *FLOW, *SEDIMENTATION,...
This document is a user's manual for the prototype computer program MacGRID, whose purpose is to generate finite element models for the analysis code MAVART. MacGRID, as its name suggests, is designed to run on an Apple Macintosh computer, and all of the standard menus found in a Macintosh application are supported, in addition to the special menus required to generate a finite element model. The application has two windows, one shows the model in graphical form, where the model can be created...
Topics: DTIC Archive, DEFENCE RESEARCH ESTABLISHMENT ATLANTIC DARTMOUTH (NOVA SCOTIA), *COMPUTER PROGRAMS,...
This document presents a review of the Maritime Information Sharing Technology (MIST) database and the Land Command and Control Information Exchange Data Model (LC2IEDM) in the context of storing sonar contact information. The set-up of each system is described, as well as the software that supports the systems. Tactical data describing a sonar contact is defined and used to load the MIST database. The same data content is then placed into appropriate tables in the Land Command and Control...
Topics: DTIC Archive, DEFENCE RESEARCH AND DEVELOPMENT ATLANTIC DARTMOUTH (CANADA), *DATA MANAGEMENT,...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *SOFTWARE ENGINEERING,...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST, *MANAGEMENT PLANNING...
"May 1965."
Topics: Computer programs, FORTRAN II (Computer program language), Hydrology United States
Experience in the field of quiet aircraft for reconnaissance/ surveillance applications indicated a need for a reliable quiet propeller design procedure. The report describes the development of a computer program intended to fulfill this need. The propeller noise detectability computer program predicts propeller harmonic rotational noise using non-steady blade loads and broad-band noise using a new integration method and compares these predictions with an appropriate aural detectability...
Topics: DTIC Archive, Barry, Frank W, UNITED TECHNOLOGIES CORP WINDSOR LOCKSCT HAMILTON STANDARD DIV,...
A fast computer program for predicting nonequilibrium rocket plume properties is described. The analytical model assumes parallel turbulent (or laminar) mixing between concentric chemically reacting streams and can also be used for studying chemical lasers and re-entry wakes. The effects on radar attenuation are also presented. The equations for free shear layer mixing with nonequilibrium chemistry are solved. The stability problems inherent in fully explicit finite difference schemes are shown...
Topics: DTIC Archive, Mikatarian, R R, AEROCHEM RESEARCH LABS INC PRINCETON NJ, *REACTION KINETICS,...
